diff --git a/src/pipecat/services/cartesia.py b/src/pipecat/services/cartesia.py
index c1c296046..e38d56db3 100644
--- a/src/pipecat/services/cartesia.py
+++ b/src/pipecat/services/cartesia.py
@@ -180,8 +180,7 @@ class CartesiaTTSService(AsyncWordTTSService):
     async def _connect(self):
         try:
             self._websocket = await websockets.connect(
-                f"{self._url}?api_key={self._api_key}&cartesia_version={
-                    self._cartesia_version}"
+                f"{self._url}?api_key={self._api_key}&cartesia_version={self._cartesia_version}"
             )
             self._receive_task = self.get_event_loop().create_task(self._receive_task_handler())
         except Exception as e: